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18 Yukon XL 5.3L Oil Pressure
Im interested in this issue also. I just drove a 2017 59k miles. The pressure at start up was about 40 dropping to just below 40 after 5 min warm up. Once on the road and hot, 80 degrees outside temp +/- at speed it was pushing about 40 but in traffic it dropped into the 30's then 20's and...- mk2sprite
- Post #7
- Forum: Engine & Drivetrain
